JP2010260739A5

JP2010260739A5 -

Info

Publication number: JP2010260739A5
Application number: JP2009111301A
Authority: JP
Filing date: 2009-04-30
Publication date: 2011-12-01

Claims

酸化物換算組成のガラス全質量に対して、質量％でＰ_２Ｏ_５成分を５．０％以上４０．０％以下、Ｎｂ_２Ｏ_５成分を１０．０％以上６０．０％以下含有し、ＣａＯ成分の含有量が３．８６％以下であり、ＢａＯ成分の含有量が１０．０％未満であり、Ｔａ _２Ｏ _５成分の含有量が８．０％以下であり、Ｓｂ _２Ｏ _３成分の含有量が０．１０％以下であり、質量和Ｌｉ _２Ｏ＋Ｎａ _２Ｏ＋Ｋ _２Ｏが１３．０％以下であり、分光透過率が７０％を示す波長（λ_７０）が５００ｎｍ以下であり、５００℃以上１２００℃以下の液相温度を有する光学ガラス。 The entire mass of the glass in terms of oxide composition, _P 2 _{O 5} ingredient 40.0% 5.0% or more of the following in mass%, _Nb 2 _{O 5} ingredient containing less 60.0% 10.0% or more The content of the CaO component is 3.86% or less, the content of the BaO component is less than 10.0%, the content of the Ta ₂ O ₅ component is 8.0% or less, and Sb ₂ O ₃ The content of the component is 0.10% or less, the mass sum Li ₂ O + Na ₂ O + K ₂ O is 13.0% or less, and the wavelength (λ ₇₀ ) at which the spectral transmittance is 70% is 500 nm or less, An optical glass having a liquidus temperature of 500 ° C. or higher and 1200 ° C. or lower.

酸化物換算組成のガラス全質量に対して、質量％でＰ P in mass% with respect to the total mass of the glass in oxide equivalent composition _２2 ＯO _５5 成分を２３．７０％以上含有する請求項１記載の光学ガラス。The optical glass according to claim 1, comprising 23.70% or more of components.

酸化物換算組成のガラス全質量に対して、質量％で
ＴｉＯ_２成分０〜３０．０％及び／又は
ＳｉＯ_２成分０〜１０．０％
の各成分をさらに含有する請求項１又は２記載の光学ガラス。 The entire mass of the glass in terms of oxide composition, 0 to 30.0% TiO ₂ component in terms of mass% and / or
S iO ₂ component 0 to 10.0%
The optical glass of Claim 1 or 2 which further contains each component of these.

酸化物換算組成のガラス全質量に対して、質量％でＳｉＯ_２成分の含有量が２．０％以下である請求項１から３のいずれか記載の光学ガラス。 The optical glass according to any one of claims 1 to 3 , wherein the content of the SiO ₂ component is 2.0% or less by mass with respect to the total mass of the glass having an oxide equivalent composition.

酸化物換算組成のガラス全質量に対して、質量％で
Ｌｉ_２Ｏ成分０〜１０．０％及び／又は
Ｎａ_２Ｏ成分０〜１２．０％及び／又は
Ｋ_２Ｏ成分０〜１０．０％未満
の各成分をさらに含有する請求項１から４のいずれか記載の光学ガラス。 Li ₂ O component 0 to 10.0% and / or Na ₂ O component 0 to 12.0 % and / or K ₂ O component 0 to 10.0 by mass% with respect to the total glass mass of the oxide equivalent composition. the optical glass according to any of 4 from claim 1, further comprising a respective component of less than%.

酸化物換算組成のガラス全質量に対して、質量％で
ＭｇＯ成分０〜５．０％及び／又は
ＳｒＯ成分０〜１０．０％
の各成分をさらに含有する請求項１から５のいずれか記載の光学ガラス。 The entire mass of the glass in terms of oxide composition, 0 to 5.0% MgO component in% by weight and / or
S rO component from 0 to 10.0%
Any description of the optical glass of claims 1 to 5, further comprising the components of.

酸化物換算組成のガラス全質量に対する質量和ＭｇＯ＋ＣａＯ＋ＳｒＯ＋ＢａＯが２０．０％以下である請求項６記載の光学ガラス。 7. The optical glass according to claim 6, wherein the mass sum MgO + CaO + SrO + BaO is 20.0% or less with respect to the total glass mass of the oxide equivalent composition.

酸化物換算組成のガラス全質量に対して、質量％で
Ｙ_２Ｏ_３成分０〜１０．０％及び／又は
Ｌａ_２Ｏ_３成分０〜１０．０％及び／又は
Ｇｄ_２Ｏ_３成分０〜１０．０％
の各成分をさらに含有する請求項１から７のいずれか記載の光学ガラス。 The entire mass of the glass in terms of oxide composition, from 0 to 10.0% _Y 2 _{O 3} component in% by weight and / or _La 2 _{O 3} component from 0 to 10.0% and / or _Gd 2 _{O 3} component 0 10.0%
Any description of the optical glass of claims 1 7 which further contains each component of.

酸化物換算組成のガラス全質量に対する質量和Ｙ_２Ｏ_３＋Ｌａ_２Ｏ_３＋Ｇｄ_２Ｏ_３が２０．０％以下である請求項８記載の光学ガラス。 The optical glass according to claim 8, wherein the sum of masses Y ₂ O ₃ + La ₂ O ₃ + Gd ₂ O ₃ with respect to the total glass mass of the oxide equivalent composition is 20.0% or less.

酸化物換算組成のガラス全質量に対して、質量％で
Ｂ_２Ｏ_３成分０〜１０．０％及び／又は
ＧｅＯ_２成分０〜１０．０％及び／又は
Ｂｉ_２Ｏ_３成分０〜１５．０％及び／又は
ＺｒＯ_２成分０〜１０．０％及び／又は
ＺｎＯ成分０〜１０．０％及び／又は
Ａｌ_２Ｏ_３成分０〜１０．０％及び／又は
ＷＯ_３成分０〜２０．０％
の各成分をさらに含有する請求項１から９のいずれか記載の光学ガラス。 B ₂ O ₃ component 0 to 10.0% and / or GeO ₂ component 0 to 10.0% and / or Bi ₂ O ₃ component 0 to 15% by mass with respect to the total glass mass of the oxide equivalent composition. 0% and / or ZrO ₂ component from 0 to 10.0% and / or ZnO component from 0 to 10.0% and / or _Al 2 _{O 3} component from 0 to 10.0% and / or
W O ₃ component 0 to 20.0 %
Any description of the optical glass of claims 1 to 9, further comprising the components of.

１．７０以上２．２０以下の屈折率（ｎｄ）を有し、１０以上２５以下のアッベ数（νｄ）を有する請求項１から１０のいずれか記載の光学ガラス。 Has 1.70 to 2.20 the following refractive index (nd), 10 to 25 of Abbe number ([nu] d) The optical glass according to any one of claims 1 to 10 having a.

粉末法による化学的耐久性（耐酸性）がクラス１〜５である請求項１から１１のいずれか記載の光学ガラス。 The optical glass according to any one of claims 1 to 11 , wherein chemical durability (acid resistance) by a powder method is class 1 to 5.

請求項１から１２のいずれか記載の光学ガラスからなる光学素子。 An optical element formed of the optical glass according to any of claims 1 12.